Send to

Choose Destination
See comment in PubMed Commons below
Spectrochim Acta A Mol Biomol Spectrosc. 2007 Dec 15;68(4):1065-9. Epub 2006 Dec 22.

Raman spectroscopy as tool for the characterization of thio-polyaromatic hydrocarbons in organic minerals.

Author information

  • 1Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Prague 2, Czech Republic.


Benzothiophene and dibenzothiophene have been studied by Raman microspectroscopy using a 785 nm excitation wavelength. The spectra obtained have been compared with the previously measured spectra of idrialite, a complex natural mineral composed entirely of cata-condensed polyaromatic hydrocarbons (PAHs), usually containing a thiophenic or aliphatic five-membered ring. For comparison, the Raman spectra of 2,3-benzofluorene crystals have been obtained for the first time. Some of the bands in the idrialite spectra are attributed to specific vibrational modes of thiophene or fluorene-type PAHs, especially in the region below 1000 cm(-1). These modes at 495, 705 and 750 cm(-1) along with C-H or C-H(2) stretching modes around 3000 cm(-1) can be then used to distinguish such groups of PAHs in complicated organic mineral mixtures like idrialite.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center